CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Mechanisms of potentially toxic metal removal from biogas residues via vermicomposting revealed by synchrotron radiation-based spectromicroscopies
Sun, FS; Yu, GH; Zhao, XY; Polizzotto, ML; Shen, YJ; Zhou, HB; Zhang, X; Zhang, JC; He, XS
2020
Source PublicationWASTE MANAGEMENT
ISSN0956-053X
Volume113Pages:80-87
Subtype期刊论文
AbstractBiogas residues (BR) contaminated with potentially toxic metals pose environmental risks to soils and food chains, and strategies are needed to decrease the concentration and bioavailability of potentially toxic metals in BR. Here, metal fractions and removal mechanisms were quantified by synchrotron radiation-based Fourier transform infrared and micro X-ray fluorescence spectromicroscopies on BR and earthworms subject to vermicomposting. Vermicomposting resulted in decreases in concentrations of potentially toxic metals in BR and increases in metal removal efficiencies due to uptake by earthworms. Prior to vermicomposting, Zn, Cu and Pb were associated with N-H, O-H, aromatic C, aliphatic C, and amide functional groups, but following maturation during vermicomposting, metals were associated with N-H, O-H, aliphatic C and polysaccharide functional groups. Following vermicomposting, Zn and Cu were mainly distributed in the dermal portions of earthworms, whereas Pb was more homogeneously distributed among the inner and outer portions of the earthworms, revealing that different metals may have different uptake routes. These findings provide a new strategy for safe utilization of BR by using earthworms via vermicomposting to remove potentially toxic metals and in situ insights into how metals binding and distribution characteristics in BR and earthworms during compost and vermicomposting processes. (C) 2020 Elsevier Ltd. All rights reserved.
KeywordMUNICIPAL SOLID-WASTE FT-IR SPECTROSCOPY HEAVY-METALS APORRECTODEA-CALIGINOSA AGRICULTURAL SOILS ORGANIC-CARBON SEWAGE-SLUDGE TRACE-METALS EARTHWORM SPECIATION
DOI10.1016/j.wasman.2020.05.036
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33001
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
2.Nanjing Agr Univ, Coll Resource & Environm Sci, Jiangsu Prov Key Lab Organ Solid Waste Utilizat, Nanjing 210095, Peoples R China
3.Univ Oregon, Dept Earth Sci, Eugene, OR 97403 USA
4.Chinese Acad Agr Engn, Inst Energy & Environm Protect, Key Lab Technol & Models Cycl Utilizat Agr Resour, Beijing 100125, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
6.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China
7.Chinese Res Inst Environm Sci, State Environm Protect Key Lab Simulat & Control, Beijing 100012, Peoples R China
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Sun, FS,Yu, GH,Zhao, XY,et al. Mechanisms of potentially toxic metal removal from biogas residues via vermicomposting revealed by synchrotron radiation-based spectromicroscopies[J]. WASTE MANAGEMENT,2020,113:80-87.
APA Sun, FS.,Yu, GH.,Zhao, XY.,Polizzotto, ML.,Shen, YJ.,...&He, XS.(2020).Mechanisms of potentially toxic metal removal from biogas residues via vermicomposting revealed by synchrotron radiation-based spectromicroscopies.WASTE MANAGEMENT,113,80-87.
MLA Sun, FS,et al."Mechanisms of potentially toxic metal removal from biogas residues via vermicomposting revealed by synchrotron radiation-based spectromicroscopies".WASTE MANAGEMENT 113(2020):80-87.
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